ITunes crashes every time I try to launch it

Question

Problem signature:
  Problem Event Name:          APPCRASH
  Application Name:          iTunes.exe
  Application Version:          11.0.4.4
  Application Timestamp:          51a8f09f
  Fault Module Name:          ntdll.dll
  Fault Module Version:          6.1.7601.17725
  Fault Module Timestamp:          4ec49b8f
  Exception Code:          c00000fd
  Exception Offset:          0002dede
  OS Version:          6.1.7601.2.1.0.256.1
  Locale ID:          1033
  Additional Information 1:          64b9
  Additional Information 2:          64b9b2aa2f0a321a9d61c6a6a9ed3902
  Additional Information 3:          f3c6
  Additional Information 4:          f3c6fc807194be3fee9168813d8b626e
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Answer 1

Hello there Hugh Kim,
I recommend taking a look at this article here:
iTunes for Windows Vista or Windows 7: Troubleshooting unexpected quits, freezes, or launch issues
http://support.apple.com/kb/ts1717
It seems to address an issue similar to what you describe.
Cheers,
Sterling